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Cardiac Axis in 5 min
Educational only: videos on MedicalVideos.com are for general information and are not medical advice. Always consult your own doctor about your health.
It then spreads down the bundle of his and then purkinje fibres to cause ventricular contraction. So when viewing the heart from the front, the direction of depolarisation is 11 o'clock to 5 o'clock. The general direction of depolarisation is known as the cardiac axis.
This video in 30 seconds
This video explains the cardiac axis. It describes how the electrical signal spreads down the bundle of His and then the Purkinje fibres to cause ventricular contraction, and that when viewing the heart from the front the direction of depolarisation runs from 11 o'clock to 5 o'clock, with this general direction known as the cardiac axis.
Key points
- Covers spread of the signal through the bundle of His and Purkinje fibres
- Explains that this spread causes ventricular contraction
- Describes the normal depolarisation direction as 11 o'clock to 5 o'clock viewed from the front
- Defines the cardiac axis as the general direction of depolarisation
Video Overview
This video presents “Cardiac Axis in 5 min” — It then spreads down the bundle of his and then purkinje fibres to cause ventricular contraction. So when viewing the heart from the front, the direction of depolarisation is 11 o'clock to 5 o'clock. The general direction of depolarisation. Whether you are preparing for a procedure, studying the technique, or learning how a condition is assessed, the recording shows the process as it is performed in practice.
From our Cardiology collection: ECG interpretation, echocardiograms, angioplasty, stents and heart conditions explained by cardiologists. Browse all Cardiology videos →
Educational content only — not a substitute for professional medical advice.
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Founded by Dr. Mohamed Ibrahim, MD, PhD — physician-scientist.
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